Multiple morphologies of the aggregates from self-assembly of diblock copolymer with relatively long corona-forming block in dilute aqueous solution
Reported here is self-assembly behavior in selective solvent of diblock copolymers with relatively long corona-forming block compared to core-forming block. Three diblock copolymers, poly(ethylene glycol) monomethyl ether-b-poly(methacryloyl-L-leucine methyl ester), also denoted as MPEG-b-PMALM copo...
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Published in | Journal of polymer science. Part B, Polymer physics Vol. 48; no. 3; pp. 364 - 371 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Hoboken
Wiley Subscription Services, Inc., A Wiley Company
01.02.2010
Wiley |
Subjects | |
Online Access | Get full text |
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Summary: | Reported here is self-assembly behavior in selective solvent of diblock copolymers with relatively long corona-forming block compared to core-forming block. Three diblock copolymers, poly(ethylene glycol) monomethyl ether-b-poly(methacryloyl-L-leucine methyl ester), also denoted as MPEG-b-PMALM copolymer, were prepared by fixing MPEG block with an average number of repeating units of 115, whereas varying PMALM block with an average number of repeating unit of 44, 23, 9, respectively. Multiple morphologies, such as sphere, cylinder, vesicle, and their coexisted structures from self-assembly of these diblock copolymers in aqueous media by changing block nonselective solvent and initial polymer concentration used in preparation, were demonstrated directly via TEM observation. These results herein might, therefore, demonstrate as an example that a wide range of morphologies can be accessed not only from "crew-cut micelles" but also from "star-micelles" by controlling over preparation strategies. |
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Bibliography: | http://dx.doi.org/10.1002/polb.21898 istex:BE3A79426EA111FD7BBFF114C80ECFF7885FE5A2 National Natural Science Foundation of China - No. 20474068 ArticleID:POLB21898 Natural Science Foundation of Guangdong Province of China - No. 021471 ark:/67375/WNG-73L27M57-5 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0887-6266 1099-0488 1099-0488 |
DOI: | 10.1002/polb.21898 |